首页   按字顺浏览 期刊浏览 卷期浏览 Capercaillie(Tetrao urogallus)Lekking sites in fragmented Finnish forest landscape
Capercaillie(Tetrao urogallus)Lekking sites in fragmented Finnish forest landscape

 

作者: Pekka Helle,   Timo Helle,   Harto Lindén,  

 

期刊: Scandinavian Journal of Forest Research  (Taylor Available online 1994)
卷期: Volume 9, issue 1-4  

页码: 386-396

 

ISSN:0282-7581

 

年代: 1994

 

DOI:10.1080/02827589409382856

 

出版商: Taylor & Francis Group

 

关键词: Tetrao urogallus;lekking sites;boreal forest landscapes;forest fragmentation.

 

数据来源: Taylor

 

摘要:

The location of Capercaillie lekking sites was compared in forest mosaics of different level of fragmentation. In north Finland the stand characteristics of the lekking sites did not differ from those of randomly selected stands in the 1950s judged from forestry maps and stand registers. In the 1980s, when forestry had considerably altered stand structure, lekking stands were older, larger and had a higher timber volume than random stands. These features evenly changed from the lek centre to the distance of 4 km, to which distance the adjacent areas were assessed. Southern and central Finnish analyses, based on topographic maps, showed that the proportion of forest distinctly decreased with increasing distance from a lek centre, up to a distance of 1–1.5 km. The average patch size of lekking stands were largest in the north (where both cut areas and remaining stands are large) and smallest in central Finland dominated by fine‐grained forest landscape. The results are discussed in terms of landscape ecology and forestry planning.

 

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